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Amana Dishwasher overflowing

If your Amana dishwasher is overflowing, start with the most likely cause: a faulty water inlet valve that does not shut off when the tub has enough water. This is a common reason for a dishwasher overfills with water problem, especially if you notice water dripping in when the door is open or standing in the tub when the machine is off. Next, check the main control board or control board, since a board that keeps sending power to the water inlet valve can also cause the dishwasher water level too high issue. If it looks like the dishwasher is overflowing but water is actually leaking from the bottom of the door, inspect the lower wash arm assembly for cracks or splits that can spray water outward. Too much detergent or the wrong detergent can create oversudsing and mimic an overflow, and a stuck or failed float switch can prevent the dishwasher from shutting the fill off at the right time. Enter your Amana dishwasher model number on RepairClinic.com to find the exact replacement water inlet valve, main control board, lower wash arm assembly, or float switch that fits your machine.

01 - Amana Dishwasher Water Inlet Valve

The water inlet valve is an electrically-controlled valve that opens to allow water to enter the dishwasher. Depending on the model, the valve stays open either for a set length of time or until the dishwasher has enough water. However, if the water inlet valve doesn’t shut off after the dishwasher has enough water, the dishwasher will overflow. If water drips into the dishwasher when the door is open, or if water collects at the bottom of the dishwasher while it is not use, you may need to replace the water inlet valve.
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02 - Amana Dishwasher Main Control Board

A dishwasher's main control board provides power to nearly every electrical component in the dishwasher. If the control board continues to send power to the water inlet valve during the drain cycle, the dishwasher could overflow. While this is not that common of a problem, you can inspect the board for signs of burning or a shorted-out component. You can also use a multimeter to test the water inlet valve for incoming power during the dishwasher's cycle.
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03 - Amana Dishwasher Lower Wash Arm Assembly

If the lower wash arm has a crack or split on the side it can cause water to splash out the bottom of the door, giving the impression that the dishwasher is overflowing. Inspect the wash arm assembly for any damage and replace if necessary.
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04 - Wrong type or incorrect amount of detergent

Make sure to use the proper dishwasher detergent. Use the proper amount of detergent for your water hardness; too much soap in soft water can cause oversudsing and leaking.
Common

05 - Amana Dishwasher Control Board

A dishwasher's control board provides power to nearly every electrical component in the dishwasher. If the control board continues to send power to the water inlet valve the dishwasher could overflow. While this is not that common of a problem, you can inspect the board for signs of burning or a shorted-out component. You can also use a multimeter to test the water inlet valve for incoming power during the dishwasher's cycle.
Common

06 - Amana Dishwasher Float Switch

The float switch actuates in order to prevent the dishwasher from overflowing. If the float switch is defective or stuck, it might not stop the dishwasher from overflowing. If the float switch is defective, replace it.
Common

Frequently Asked Questions

Why is my Amana dishwasher overflowing with water?
My Amana dishwasher has standing water or keeps filling when it's off. Is the water inlet valve bad?
How do I test an Amana dishwasher float switch or water inlet valve?
Why is my Amana dishwasher leaking from the door and looking like it's overflowing?
How do I find the right Amana dishwasher overflow part for my model?

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